Rock-drill.



'UNrrnn sfrafrs rafrnn'r clarion.

DANIEL SHAW WAUGH, 0F DENVER, COLGRADO, ASSIGNOR TO THE DENVER, ROCK DRILL AND MACHINERY CO., OF DENVER, COLORADO.

ROCK-DRILL.

Specification of Letters Patent. Patented FQIL 14, 1911.

Original application filed May 26, 1,968, Serial No. 435,113.

Divided ma this application inea April 2, 1909.

Serial No. 487,464.

To all 'whom it may concern:

Be it known that I, DANIEL SHAW VAUGH, a citizen of the United States, residing at Deliver, in the county ot' Deliver and ,State ot' ('olorado, have invented certain new and useful mlnovements in Rock-Drills, oitl which the following is a. specification.

'lhc present invention relates more par ticularly to rock drills of the pneumatic hammer type, though there are features that may be ot utility in drills of other characbers.

,The present application is a division 'ot coepending application Serial No. ell-35,113, tiled May 2G, 1908.

One ot the primary objects of the inven tion is to provide a novel valve structure for governing the supply of cleansing fluid to the drill hole, whether said fluid is ot the gaseous or liquid type or both, the actuating means for the valve structure being so located that it is at -all times conveniently accessible to the operator of the drill.

A. still further and important object is to provide mechanism for governing the supply of the motive fluid to the motor and drilling means whereby a smaller hose than is ordinarily employed can be successfully used, and dirt to a great extent prevented from entering` the motor and affecting ils proper operation.

A still further object is to so arrange the controlling valve and ports that thenpressure in the feeding means for the motor is reduced at the same time that the motive Huid pressure is reduced in the motor so that light operations of the drill can be made whenever desired.

The preferred embodimentv of the invention is illustrated in the accompanying drawings, `wherein zG Figure 1 is a View, partially in elevation and partially in section, of the drill. Fig. 2 is a det-ail sectional View on an enlarged scale through the valve mechanism. Fig. 3 is asectional view on the line 3-3 olf Fig. 2. Figs Il, 5 'and 6l are respectively cross sectional views on the line i-1, 5--5 and 6-6 of Fig. 2. Fig. 7 is a detail perspective View of the valve for controlling the supply of cleansing fluid. Figs. 8 and 9 aredetail sectional Views through the valve that controls the operation of themotor. Fig. 10

is a diagrammatic View indicating the rela-,r

tive positions of the controlling'ports of said valve. l

Similar reference numerals designate corresponding parts in all the gures of the drawings. n

In the embodiment illustrated, a motor is employed, comprising a cylinder member 11 having` a suitable ehucli 12, in which is placed the usual drill bit 13, said drill bit raving a channel 111 therethrough that conducts cleansing fluid to the bottom of the drill hole. A' suitable hammer, piston operates in the cylinder and actuatcs a tappet 17 that abuts against the drill bit 13, said tappct forming Within the front end of the cyl-y inder in rear of the chuck, a chamber 1S.I The tappet 17 has a' channel 19 constituting means ot communication between the chamber 1S and thodrill steel channel ist.

illotive Huid operated feeding means is employed for the motor and drilhthe same, being generally of the Well known type, as disclosed, for instance in my former patent, No. 897,23 dated August 25, 1908, and comprises a suitable cylinder member 2O Within which operates a piston having a tubular piston rod 21. The interior of this piston rod forms 4a motive fluid receiving chamber.

or reservoir 22. A. valve easing 23 is interposed between the feeding means and motor, and constitutes a connection between the same, said casing having a reduced portion 2l that is fitted Within the piston rod 21, and is clamped thereto, as shown aty 25. The' reduced portion 2 has an internal bore 26 communicating with the chamber 22.

rthe valve easing` 23 is provided with a tapei-ed valve seatJ having a rearwardly extending port 28 leading from the valve seat into the here 2G Vand a passage 29 extending from said-.leere to the motor, the passage 29 intersecting the valve seat and constituting means for delivering motive fluid from the chamber 2,2 into the motor for actuating said motor, A rotary tapered Valve 30 is arranged in the seat, and is provided'with an exposed operating handle 31. This valve has in its larger end a bore 32 'with a port 33 leading therefrom and ymovable into and out o'i register with the port 28. The valve also has a passage 34 extending entirely therethrough and movable into and out of register with the opposite sections of theV nti ' tothe motor.

means for delivering motive fluid to the ,fluid operated means for feeding theI motor wwwwwm...

the valve l5 can of course he revolved in order to supply either gaseous or liquid cleansingr fluid to the drill hole or to cnt off both therefrom. lnasmuch as the actuating sleeve 5t) is locatcd, .ilirect.ly on the handle and is concentric thereto, it is always in convenient access to the operator of the drill.

From the foregoing, it is thought that the can traction, operation and many advantages of the herein described invention will he iipparent to those skilled in the art without further description. and it. will be understood that variouschangcs in the ai'ze, shape, proportion and minor details of construct ion may be resorted to without departing from tho spirit. or sacrificing aiiy of the advantagesl of the invention.

'llavin thus fully described my invention, what l e aim as new, andv desire to secure by Letters Patent, isz

l. In mechanism of the characters-iet forth, the combination with n. motor, of motive fluid operated means for fcedin v the motor to its work, and means located between the motor and feeding means for delivering motive fluid to the feeding means and conducting it therefrom to thel motor. i

2. In mechanism of thechariicter set forth, the combination with a motor, of motive fluid operated means for feeding the motor to its work, a device interposed between 'and connecting the motor and feeding 4means, said device delivering-motive fluid to the feeding means and conducting it therefrom 3. In mechanism of the charactersct forth, the combination w'ith a motor, of motive fluid operated means for feeding the motor to its work. said feedin v i'neans having a motive fluid chainbei"ant means located at the connection between the motor and feeding chamber. andconducting such motivo fluid from the chamber to thefnotor.

4. In mechanism of the character set forth` the. combination with a. motor` of motive to its work. said feeding means including ii Cylinder member and a pistou operating therein and having n www" "1 ".moilfl to the motor and fOlmmtl l www u' chamber, and me ns located at ltion between th otor Yf" www im.. deuveng m0,; ...ift feeding means .Bhd-andudh ...ve fluid to the chamber .g said motive fluid thcrefmin u l* .tn inechanismof thechaatter set forth :lie combination with .t motor, of motiv; {Ued ,Opened fadila: nous finanza i.' tie f V iiilvmg a sarda; pori: lendin'f in h mmf; means. '.infi n n i' i e the feedingv means to il'iiigeuilmidmg from i n 1 i l0 I' 0 COI) i itiive flluai thereto, and a single valve lirg notlli the port andi.` assage I l iec ianism of the c ar I' Ct i u i f I a et set .orth, l

the combination with a motor, of motive fluid operated feeding means theiefor, a device connectingthe motor and feeding means, said device having a supply port communieating with the feeding means, and a passage ending from the feeding means to the motor to conduct motive fluid thereto, and valve mechanism controlling the port and passa e.

'i'. lin mechanism of the character set.. forth. the combination with a motor, of :ao tive fl'uid` operated feeding means thciefor, a device connecting `the motor and. feeding means, said device having a supplv port communicating with the feeding nica-ns and a passage leading from the feeding means to the motor to conduct motive 'fluid thereto, and a single -valve controlling both thi port and passage.

8. In mechanism of the character set f orth, the combination with a motor, of motive fluid operated feeding means for said motor provided with a motive fluid chamber. a valve casing having a supplv port leading to the chamber and ii passage leading from the chamber to the motor to conduct motive fluid thereto, and. ies-ingle valve operating in the casing and controlling both the port and passiwc.

t). n mechanism of the character set forth. the combination with u motor` of motive fluid operated fet-din" means therefor. including a cylinder mem ier and a tubulin' piston located in the cylinder member and fprming a motive fluid chamber, a connection between the motor aiiil piston compris- 'ing a valve casingr having a snpplv port leading to the chamber and a passage leading from the chamber to thc motorbto conduct motive fluid to the latter, and a rotarv valve having a supply ort that moves info and out of register with the s npplv port. of the easing. and a passage. that moves into and 'out of register with the piissa've from the chamber to. the motor. n

10. l'n mechanism of the character set forth` the combination with a motiva 1' tive fluid operated-fwd' "2 n valve casi" ....iiig 11W-lili iiiiiliieloi'.- an n interposed and constitutingr a nectl'vbkaii'ct'ween the motor uml leedm'T h ieans. sai'il casing lni'ving a transverse. sedi ope'n at4 oneeial, a rcai'wartlly extending port com'ii'iu'iiicating with the facilita' uic-:ins and ii passage. lewll. from the Dfeeding means to the metiniind intersecting the "nlv Seat, and tt rotarv valve` lo'cafcd in the swt aait-having si port and passage that respectively move into' and out. of register with tie port and passage of tho seat, said )assage of the seftt eondiictinv motive uid from an@ figc-.ling means to t ie motor to actnate. the latter.

.1. in mechanism of the character set forth, the combination with D; mOtOmd feeding means thereto?, includi'ig.r '11 Piston llii and a cylinder, of a valve easing connecting l the motor nml feeding means und havin" u l tapered valve sent. a rearwardly extemhng,l supply port eonnnnniwtting with the feedt ing nat-ans' aml a passage extending from the feeding means to the motor and delivering motive tluitl to the latter foraetuating said i motor, a tapered rotary valve located in thel l valve seat uml'having an exposed actuating :aid valve having.r a supply port that registers with the supply port. of the casing and havinga passage movable into and out ot' eonununitattion with the passage of the easing, and a supply pipe coupled to the valve easing and delivering to the supply port of the valve.

12. A pressure fluid tool, fluid pressure feeding means therefor, a controlling device that closes direct communication between the pressure fluid sulpply and tool and having ports so'arranget that when .the de'vice is in one position, it opens wmmumcationfrom the pressure fluid supply to the tool through the feeding means.

13. pressure l fluid tool, fluid pressure feedin means therefor and a controlling valveiiiated between t, e tool and feeding means and closing direct communication between the rassure fluid supply and tool, said valve iaving ports o arranged that when it is in one position, it o ens communi-y cation from the pressure tlui supply to the tool-through the feeding means,

[14. In an air feed hammer. drill, a Initiimer, a head block, an air supply,`,`an air feeding means comprising aI cylinderand its piston, and a'manually operated controlling valve in the head block that closes direct communication between the air supplv'aml hammer ami having ports'so arranged that when the valve is in one position, tt\opens communication from the air supply. to the hammer through the air fe`eding means.

15. A pressure fluid tool, fluid n-essure feeding means therefor, a head block etween the tool and means, having passages, and a controlling device in the head block having ports so arranged.thatmwhen the device is in one through the portion( essa res from the pressure fluid suppl-y to t te too through the feeding means, aud,.\`vhe'n in another positionit closes communication between the pressure fluid supply and the feeding means and between t-he feedin means and tool.

1n. A lpressure uid tool, fluid feeding means therefor, a head b eck be.- tween the tool and means, having passages, and a controlling valve locatedin the head block and having portsso arranged that when the valve is in one position, it opens communication from the ressure fluid supply to the tool through t-ie feeding means, and-,when in another osition, it closes conn municatien between t e pressure fiuid sup ply and feeding means and-between the. feedin means and tool.

17. in an air feed hammer drill, a head block having passages, au air supply, an air feeding means comprising a cylinder' and its' iston, and a manually operated valve in the wad block, having ports so arranged that.

when the valve is in one position, it o )ons eounnunication through the' passages iront the air supply to the hammer through the feeding means, and when 'in another posi,- tion, it closes communieittion from the air snp ily to the' feeding means and from the feet ing means to the tooi.

-ln testimony whereof I aflix my sigmttnre, in presence of two witnesses.

DAN IEL SHAW WAUG 1l.

\\itnesscs:

position, 1t o ens con'ununicatiorr 

